Relationship between Circadian Blood Pressure Pattern and Coronary Slow Flow

Radwan, Hanan; Emam, Soliman Ahmed; Awdi, Mohamed; Shaker, Ahmed

doi:10.21608/asmj.2023.194685.1096

	Relationship between Circadian Blood Pressure Pattern and Coronary Slow Flow
Ain Shams Medical Journal
Articles in Press, Accepted Manuscript, Available Online from 01 October 2024
Document Type: Original Article
DOI: 10.21608/asmj.2023.194685.1096
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Authors
Hanan Radwan¹; Soliman Ahmed Emam ²; Mohamed Awdi¹; Ahmed Shaker¹
¹Department of Cardiology, Faculty of Medicine, Zagazig University
²Cardiology Departmen, Al-Ahrar Teaching Hospital
Abstract
Background Dipper hypertension referred to a drop of more than 10% in nocturnal blood pressure during the circadian rhythm while a decrease less than 10 % is referred to non-dipper. Coronary slow flow is associated with severe cardiovascular complications myocardial ischemia, malignant arrhythmias, and cardiovascular mortality. Aim of the work We aimed to examine the relationship between circadian blood pressure pattern and thrombolysis in myocardial infarction (TIMI) frame count, which is an indicator for coronary slow flow. Methods This is a comparative cross-sectional study that included patients with symptoms of typical chest pain or angina equivalent with or without stress test who underwent elective coronary angiography, and their blood pressures were followed up with ambulatory blood pressure monitoring (ABPM). The patients were divided into dipper and non-dipper hypertensives. The data of ABPM, and the thrombolysis in myocardial infarction (TIMI) frame count were compared between the compared groups. Results A total of 60 patients (26 males and 24 females) were included. Twenty-three patients were in the dipper group and 37 patients in the non-dipper group. Regarding ABPM over 24 hours, the non-dipper group had higher levels in terms of mean BP, mean systolic BP and pulse pressure (PP) than the dipper group. Regarding daytime ABPM, the non-dipper group had higher levels in terms of mean BP, mean systolic BP, and PP than the dipper group. Regarding nighttime ABPM, the non-dipper group had higher levels in terms of mean BP, mean systolic BP, mean diastolic BP, and PP than the dipper group.
Keywords
Hypertension; coronary angiography; coronary slow flow; TIMI frame count; dipper


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